菲律宾总统马科斯访美，踢到铁板，外媒：美国不愿捆绑关税和安全

Group 1 - Philippine President Marcos visited the United States to enhance cooperation amid a trade war, with the U.S. imposing a 20% tariff on the Philippines starting August 1, up from 17% previously [1][3] - The U.S. is unwilling to link tariffs with security issues, leading to unmet expectations from Marcos's visit [3][9] - The Philippines seeks U.S. support against China, but the U.S. has shown limited commitment to security guarantees despite existing defense treaties [5][7] Group 2 - Marcos's administration has shifted the Philippines' stance towards a more confrontational approach against China, contrasting with the previous administration's close cooperation [7] - The Philippines attempted to negotiate tariff concessions in exchange for clearer security assurances from the U.S., but the U.S. did not agree to this proposal [9] - The U.S. has historically treated its allies without leniency, as seen in its tariff policies towards the EU, indicating a tough stance on trade negotiations [9]